Three-way valve for petroleum pipeline

Abstract

The three-way valve for the petroleum pipeline comprises a middle pipe, one end of the middle pipe is fixedly connected with a vertical pipe, the two sides of the middle pipe are both fixedly connected with side face pipes, a first sealing groove is formed in the upper surface of the vertical pipe, a cavity is formed in the first sealing groove, and a second sealing groove is formed in the lower surface of the middle pipe. A first threaded hole is formed in the end of the vertical pipe and located in the outer side position of the first sealing groove, an inclined hole is formed in the cavity, the two sides of the inclined hole are in butt joint with one end of the side face pipe, a buffer groove is formed in the bottom of the inclined hole, and a fixing strip is fixedly connected to the inner side face of the first sealing groove. The surface of the fixing strip is provided with an opening positioning groove and a circular positioning hole, the adaptability is high according to different angles and positions, a buffering groove is formed for installing a flow dividing ball head, the bottom position can be protected, the flow dividing effect is improved, the direct impact strength is reduced, safety and stability are achieved, and combined use is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of tee valves, and more specifically, to a tee valve for oil pipelines. Background Technology

[0002] Petroleum, one of the main targets of geological exploration, is a viscous, dark brown liquid known as the "blood of industry." Petroleum is stored in some areas of the upper crust. Its main components are a mixture of various alkanes, cycloalkanes, and aromatic hydrocarbons. Pipelines are needed for the transportation of petroleum, and the more complex pipeline connections require the use of three-way valves.

[0003] The utility model patent with authorization announcement number CN210687083U discloses a new type of three-way valve for oil pipelines. Its structure includes a valve body, a discharge port, a feed port, a handwheel, a valve stem, a valve core, and a reinforcing mechanism. By setting the reinforcing mechanism at the bottom of the valve body, the sliding rod and sleeve are rotated by rotating the rotating rod, and then the sleeve is pulled to the appropriate length. Then, the positioning bolt is rotated into the corresponding positioning screw hole for fixation. The base plate and the sleeve are fixed by the mounting screw hole on the base plate. This achieves the beneficial effect of further reinforcing the three-way valve and preventing the valve from deviating due to long-term impact from oil, which would affect oil transportation.

[0004] In the above-disclosed structure, the valve stem and handwheel are directly connected through the valve body to achieve a three-way connection. However, the combined installation structure lacks the positioning groove and positioning hole for the fixing strip, which cannot be connected to different positions and structures as needed, resulting in poor adaptability. Furthermore, the three-way connection position lacks a buffer structure, which can easily cause direct impact on the bottom, affecting the diversion efficiency and reducing the safety of the bottom. Improvements are needed. Utility Model Content

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a three-way valve for oil pipelines. By installing a vertical pipe and a side pipe through the middle pipe, a three-way structure can be formed. Furthermore, the internal fixing strip is equipped with an open positioning groove and a circular positioning hole, which can be snapped onto and installed with a positioning valve core. This facilitates high adaptability to different angles and positions. In addition, a buffer groove is set to install a flow diverting ball head, which can protect the bottom position, improve the flow diversion effect, reduce direct impact force, ensure safety and stability, and facilitate combined use.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A three-way valve for oil pipelines includes an intermediate pipe, one end of which is fixedly connected to a vertical pipe, and both sides of the intermediate pipe are fixedly connected to side pipes. The upper surface of the vertical pipe is provided with a first sealing groove, the interior of which has a cavity. The end of the vertical pipe is provided with a first threaded hole, which is located outside the first sealing groove. The interior of the cavity is provided with an inclined hole, the two sides of which are connected to one end of the side pipe. The bottom of the inclined hole is provided with a buffer groove. A fixing strip is fixedly connected to the inner side of the first sealing groove. The surface of the fixing strip is provided with an open positioning groove and a circular positioning hole, which are staggered and distributed inside the fixing strip.

[0008] Furthermore, the end of the side tube is provided with a docking platform, and the surface of the docking platform is provided with a second sealing groove.

[0009] Furthermore, the surface of the docking platform is provided with a second threaded hole, which is located outside the second sealing groove.

[0010] Furthermore, there are four fixing strips, which are evenly distributed at equal angles on the inner surface of the cavity. They are connected to the docking platform through the side tube and are provided with a second threaded hole and a second sealing groove, which can be installed with the pipeline, which is conducive to sealing and protection and convenient and stable.

[0011] Furthermore, the buffer groove is provided with a fixed threaded hole inside, and a threaded head is installed inside the fixed threaded hole. One end of the threaded head is fixedly connected to a flow divider ball head.

[0012] Furthermore, a support plate is fixedly connected to one side surface of the diverter ball head, and the support plate is inserted into one end of the inclined hole.

[0013] Furthermore, the outer circular surface of the support plate is provided with an inclined surface, which is in contact with the inner wall side of the buffer groove. The diversion ball head and the support plate are installed inside the buffer groove and can be fixed by thread. The combined positioning of the flow basin is used for diversion protection, which is safe, efficient and highly adaptable.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] (1) This solution can form a three-way structure by installing vertical pipe and side pipe through the middle pipe. The internal fixing strip is set with an open positioning groove and a circular positioning hole, which can be snapped to install the positioning valve core. It is suitable for different angles and positions, and has high adaptability. The buffer groove is set to install the diversion ball head, which can protect the bottom position, improve the diversion effect, reduce the direct impact force, and is safe, stable, and easy to use in combination.

[0016] (2) The side pipe is connected to the docking platform, and a second threaded hole and a second sealing groove are provided. It can be installed with the pipeline, which is conducive to sealing and protection, and is convenient and stable.

[0017] (3) By installing diversion ball head and support plate inside the buffer tank, it can be fixed by thread installation, and the diversion protection can be carried out by watershed combination positioning. It is safe, efficient and highly adaptable. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal cross-section of the present invention;

[0020] Figure 3 This is a partial cross-sectional view of the flow divider ball joint connection of this utility model;

[0021] Figure 4 This is a partial structural diagram of the fixing strip connection of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the flow divider ball head of this utility model.

[0023] Explanation of the labels in the diagram:

[0024] 1. Intermediate pipe, 11. Vertical pipe, 12. First sealing groove, 13. Cavity, 14. First threaded hole, 15. Inclined hole, 16. Buffer groove, 17. Side pipe, 18. Docking platform, 2. Fixing strip, 21. Open positioning groove, 22. Circular positioning hole, 23. Second threaded hole, 24. Second sealing groove, 25. Fixed threaded hole, 26. Threaded head, 27. Diverting ball head, 28. Support plate, 29. Inclined surface. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1 , Figure 2 and Figure 4A three-way valve for oil pipelines includes an intermediate pipe 1, one end of which is fixedly connected to a vertical pipe 11. Side pipes 17 are fixedly connected to both sides of the intermediate pipe 1. A first sealing groove 12 is provided on the upper surface of the vertical pipe 11, and a cavity 13 is provided inside the first sealing groove 12. A first threaded hole 14 is provided at the end of the vertical pipe 11, allowing a sealing ring to be installed inside the first sealing groove 12. A threaded bolt is then installed through the first threaded hole 14 to connect to the oil pipeline. The sealing ring can be tightened for sealing, ensuring the stability of the three-way connection and facilitating installation and use. The first threaded hole 14 is located outside the first sealing groove 12, and inside the cavity 13... The part is provided with an inclined hole 15, and the two sides of the inclined hole 15 are connected to one end of the side tube 17. The bottom of the inclined hole 15 is provided with a buffer groove 16. The inner side of the first sealing groove 12 is fixedly connected with a fixing strip 2. The surface of the fixing strip 2 is provided with an open positioning groove 21 and a circular positioning hole 22. Other structures can be installed inside the cavity 13, and can be locked and fixed in combination with the circular positioning hole 22. The open positioning groove 21 can be directly and elastically snapped into position, which is conducive to combination installation and convenient selection and use. The upper and lower arranged structures can be layered and staggered to avoid interference and facilitate installation and use. The open positioning groove 21 and the circular positioning hole 22 are staggered and distributed inside the fixing strip 2.

[0027] Please see Figure 1 and Figure 2 The end of the side tube 17 is provided with a docking platform 18. The surface of the docking platform 18 is provided with a second sealing groove 24 and a second threaded hole 23. The second threaded hole 23 is located outside the second sealing groove 24. There are four fixing strips 2, which are evenly distributed at equal angles on the inner surface of the cavity 13. The docking platform is connected through the side tube and is provided with the second threaded hole and the second sealing groove. It can be installed with the pipeline, which is conducive to sealing and protection, and is convenient and stable. A sealing ring can be connected inside the second sealing groove 24 and bolts can be connected with the second threaded hole 23 to align with the flange of the pipeline for combined installation, which is convenient for tee connection and safe and stable.

[0028] Please see Figure 2 , Figure 3 and Figure 5The buffer groove 16 has a fixed threaded hole 25 inside, and a threaded head 26 is installed inside the fixed threaded hole 25. One end of the threaded head 26 is fixedly connected to a flow divider ball head 27. A support plate 28 is fixedly connected to one side surface of the flow divider ball head 27. The support plate 28 is inserted into one end of the inclined hole 15. The outer circular surface of the support plate 28 has an inclined surface 29. By setting the inclined surface 29, it can be pressed against the side of the buffer groove 16 to seal it, thereby separating the fixed threaded hole 25 at the bottom, avoiding corrosion damage, facilitating disassembly and maintenance, and having high adaptability. 29 is attached to the inner wall side of the buffer tank 16. The diversion ball head and support plate are installed inside the buffer tank and can be fixed by thread. The diversion protection is achieved by the combined positioning of the flow area. It is safe, efficient and highly adaptable. After the medium flows from the vertical pipe 11, it passes through the cavity 13 and the inclined hole 15. It can first impact the surface of the diversion ball head 27 and then diffuse to both sides into the side pipe 17. It can achieve three-way flow, which is conducive to the control of combined oil pipelines. It is safe and stable. In addition, the air flow ball head 27 connected by the threaded head 26 can be partially disassembled and replaced, which is highly adaptable.

[0029] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A tee valve for oil pipeline, comprising a middle pipe (1), one end of the middle pipe (1) is fixedly connected with a vertical pipe (11), both sides of the middle pipe (1) are fixedly connected with side pipes (17), characterized in that: The upper surface of the vertical pipe (11) is provided with a first sealing groove (12), the inside of the first sealing groove (12) is provided with a cavity (13), the end of the vertical pipe (11) is provided with a first threaded hole (14), the first threaded hole (14) is located outside the first sealing groove (12), the inside of the cavity (13) is provided with an inclined hole (15), both sides of the inclined hole (15) are connected to one end of the side pipe (17), the bottom of the inclined hole (15) is provided with a buffer groove (16), the inside of the first sealing groove (12) is fixedly connected with a fixed strip (2), the surface of the fixed strip (2) is provided with an open positioning groove (21) and a circular positioning hole (22), the open positioning groove (21) and the circular positioning hole (22) are distributed in the inside of the fixed strip (2).

2. A tee valve for use in oil lines as defined in claim 1, characterized in that: The end of the side pipe (17) is provided with a butt joint table (18), the surface of the butt joint table (18) is provided with a second sealing groove (24).

3. A tee valve for use in oil lines as defined in claim 2, characterized in that: The surface of the butt joint table (18) is provided with a second threaded hole (23), the second threaded hole (23) is located outside the second sealing groove (24).

4. The tee valve for oil lines according to claim 1, characterized in that: The fixed strip (2) has four, and is evenly distributed at equal angles on the inside surface of the cavity (13).

5. The tee valve for oil lines according to claim 1, characterized in that: The inside of the buffer groove (16) is provided with a fixed threaded hole (25), the inside of the fixed threaded hole (25) is screwed with a threaded head (26), one end of the threaded head (26) is fixedly connected with a shunt ball head (27).

6. A tee valve for use in oil lines as defined in claim 5, characterized in that: One side surface of the shunt ball head (27) is fixedly connected with a support plate (28), the support plate (28) is inserted into one end of the inclined hole (15).

7. A tee valve for use in oil lines as defined in claim 6, characterized in that: The outer circular surface of the support plate (28) is provided with an inclined surface (29), the inclined surface (29) is attached to the inner wall side of the buffer groove (16).

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